Nouns denoting natural phenomena

a secondary and sometimes unexpected consequence
ionic beam
a beam of ions moving in the same direction at the same speed
the mechanical energy that a body has by virtue of its motion
speech spectrum
the average sound spectrum for the human voice
light wispy precipitation that evaporates before it reaches the ground (especially when the lower air is low in humidity)
acoustic resistance
opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component
theta rhythm
the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude
a steady even light without flames
magnetomotive force
the force that produces magnetic flux
the formless and disordered state of matter before the creation of the cosmos
mother lode
the main vein of ore in a deposit
a cold dry wind that blows south out of the mountains into Italy and the western Mediterranean
chromatic aberration
an optical aberration in which the image has colored fringes
east wind
a wind from the east
high wind
a very strong wind
electrical conduction
the passage of electricity through a conductor
a stifling cloud of smoke
Brownian movement
the random motion of small particles suspended in a gas or liquid
a deposit of valuable ore occurring within definite boundaries separating it from surrounding rocks
peptide linkage
the primary linkage of all protein structures; the chemical bond between the carboxyl groups and amino groups that unites a peptide
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